There are multiple reasons for an uneven and grainy buttock, and different causes are handled differently. First, there may be subcutaneous soft tissue swelling in the buttocks, the most common is lipoma, fibroma or sebaceous cyst, must do ultrasound to clearly diagnose, if you want to lift the swelling, the fundamental treatment is surgical excision. Secondly, it may also be caused by the irregularity of hip fat, the most common generalized obesity and hip fat is relatively thick and lead to. Weight loss can be, you can do aerobic exercise, and then through the diet gradually make the subcutaneous fat reduction, buttock particles will slowly ease. Finally, skin diseases.